Thomas keith



2 sheets-sheet `1.'

Patented Apr. 29, 1894:

2 Sheets-Sheet 2 f f) if:

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T.- KEITH.

ELEVATING APPARATUS.'

Patented Apr.-29, 1884 (No Model) parcels or packages; but it may be Unirse drains farai* tries,

THOMAS KEITH, OF NEY YORK, N. Y.

sLevAi-lne APPARATUS.

V SVPECIFICATEON forming part of Letters Patent No. 297,696, dated April 29, 1884.

i "'f Application tiled February 16.1884. (No model.)

To @ZZ whom it may con/cern:

Be itknown that l, Tnonnislnmm of the city and county of New York, in the State of New/"York, have invented .a new and useful Improvement in Elevating Apparatus, of which the following is a specification.

Alllfy invention isinore particularly intended forraising or lowering freight or goods in the forni,v oi' barrels, boxes, bags, bales, or other in a passenger-elevator. v

The invention relates to thatclass of elevators or elevating apparatus which comprises two endless chains or wire ropes mounted on chain or driving wheels atthe top and bottorn of 'the hoistway, and connected by crossrods,' so as to forni, in eii'ect, a continuously-oper ating carrier. ln such an elevator or' elevating apparatus the packages of; goods are placed, preferably while the endless carrieris moving, upon platforms or moving tables on the carrier, and, after being raised or lowered the required distance, are deposited on aoor above or below thatv from which they were taken, as the case may be. Y l My invention consists in various novel conibinations of parts and details of construction,

hereinafter described, and pointed out in the claims.

In the accompanyingr drawings, Figures 1 and 2 are sectional elevations of an apparatus embodying my invention. Fig, 3 is an irregular horizontal section on the line x x; Fig, l; and Figs. 4 and 5 are sectional elevations of a passenger car or cab to be used with inyele` I vater if designed for passenger traiiic instead of freight.

Similar lettersof reference designate corre sponding parts in all the figures.

A A A designate the three iioors of abuilding in which my elevating apparatus is ar ranged. The hoistway or framework .is formed, principally, by four uprights or posts,

B, which are arranged two on a side, and are held in fixed relationto each other by being' securely bolted to the door-beams a, and' yto horizontal sleepers or timbers a', placed on each iloor. The posts B at each side of the h'oisltway are also connected by crosstiinbers b'b 1.

embodied wheel, c, and -pinion c', and onwhich are fast and loosepulleys c2 c3, i'or a driving-belt. The shaft G is supported in bearings on the crosspiece b', and by ita rotary motion in the direction ofthe arrow, Fig. 2, is imparted to the shaft C. l

Upon the shaft C are two sprocket or chain drivingwheelsd d, andl at the top of` the are in the saineplanesas the wheels d d, and

outward, and is supported i /a bearing, e2.

At the outer end of each/ of the wheel. are kept in the saine plane as the wheels d' dil l) D designate two endlesshains, which continuouslyoperating carrier of the appa wheels are so formed audadapted to each other that they will not slip on the wheels.

and are provided with inwardly-projecting ears, e, which overlap opposite sides ofthe rims of the chain-wheels, and so prevent the chains from shiftinglaterally on the wheels.

vlnconne'ctiou with the chains D are einployed two pairs of guides, ff', which areheld in proper relation'to each other by brackets f2 on the posts vB,'and the purpose of which I willhereinafter explain, The vertical portionsof the guide f are joined at the bottoni by semicircular portions f, airdat their upper ends by semicircular frames f4, which may be of-cast-iron, Onv these frames f are erected the standards f, which support the bearings eE of desiredt'o tighten the chains D D, the lframes bodily by means of adjusting-screwsfi.

aft c' is a eollar,/ e3, which bears against the outer end of the bearing e2 and preventsthe inward inoveuient/ By /these ineans-the/iv/heels e e ratus. The chains maybe niadeof malleablev iron or other links, and they apli the chair/1f hoistw'ay are similar wheels oridlers, e c, which i 654 from each'` of which a short shaft, e', project-s run over thewheels d e, the chains being driven `by the wheels d and forming the lendless and7 5 The links of the chainsy are pivoted together, l'

f, stan/dards f5, and bearings ez may be raised IOO the upper rchain-wheels e ,-and wheneverit is c guides f of the two pairs.

their lower ends are connected with and supwillbe 'understood that in whatever position port a cross-rod, g2, which is provided at the ends with rollers working in the guides j". The hangers or.links g'are`set so as to just -clear the chain-wheels e e and pass between them, as shown in Fig. 1. Consequently it the hangers or links of each pair may be they will always hang vertically, and their vlower ends will be held in proper position by the engagement of 4the rod glwith the guides f. The semicireular guide portions f3 are of the same or near the same radius as the chainwheels d e, and consequently as the rods g are being carried around the upper orlower chainwheels the rods g wilLbe passing through the guide portions f3 f4 and will always be held vertically.

From the rod (f" arms g extend outward and slightly npward,`and to the outer ends of these arms, atii, is pivoted the platform E. rlhe said platform is slightly lower at the middle of its width and slant's from each side downward to the center. The center of the platform is directly over and rests upon the rod g2, and the weight is thus supported in the same plane as that in which the chains move. The arms g" may be considered as part of the hangers g. y

The form of `the moving platforms E and the manner of supporting them from the chains are very desirable. They are of such shape that the load,when it consists of a round bale or barrel, cannot roll oli', and yet can be readily delivered o r unloaded, when the plat-4 form is moving downward, by raising its inner edge and tilting it on the pivots ifi.. The eenter of gravity of the load always falls in the plane of movement of the chains, and hence a comparatively heavy load maybe carried with little friction and wear of the guides.

Inasmuch as the resting-point of the platform E on the rod g2 is below thepivots $6, there.

is no danger'of the platform being accidentally tilted, audit will maintain its horizontal position while making the complete circuit of the chains, or until it reaches the pointwhere it is desired to deliver.

I will nowdescribe how the load is taken onto the platform automatically as the platform is rising.

Each of the floors A A.Az is cut away at the side on which the chains ascend, so as to ailord space for a loading-platform, F, which is pivoted at h, and below said platform is a' will be tilted to such an extent that its loadwill. roll off. By means of the lever if the tripper i maybe moved away from the chains, as shown in the case of the iloors A A2, so

that the moving platform E, -in ascending, will.

not touchA the tripper; but, when desired, by reversing the handle or. lever, the tripper may be moved forward or toward the chains, as shown in the case of the floor A, so that the moving platform, in` ascending, will strike it.

0n the platform F at the lower floor, A, is a barrel, G, which is to be loaded, and by pulling the lever back the tri pper i has been thrown forward. As the moving platform E, which is at the bottom of the hoistway, comes into the position shown iniFig. 2 by dotted lines, its edge strikes the under side of the `front-edge of the tripper i and til` said'tripper from a horizontal position into the position shown by dotted lines. The tilting of the tripper i produces a reverse tilting movement ofthe loading-platform F, which is sufcient to cause the barrel G or other package of goods to roll or slide from the loading-platform F onto the moving platform E, and the latter having passed the tripper i, the loading-platform drops back into its normal p0- sition. Theloaded platformE, in rising, clears all the trippers i which are above the iioor at which it received its load, and by the movement of the chains is carried over to the de scending side of the apparatus.

At each door A A2 is a delivery-tripper or A tripping device consisting of a rock-shaft, j,

provided between the chains with arms j and i at. its ends with arms j?. The trippers in.

Fig. 2 are both shown as in an inoperative position, the rockshafts j beingso turned that the arms j are out of reach of the inner edges of the platforms E.y When it is desired to `deliver at theiioor Ait'he delivery-tripper at that floor will'be swung into the position shown in dotted lines in Fig. 2, and will be retained in such position byreasonfof its arms j striking against stop-pins jf.' (Shown in Figs. 1 and 2.)

When the delivery-tripper at the floor A is swung into such a position that its arms j. proj ject in the path of .the moving platform E, it is retaiiied in such position by reason of its arms j? coming against Athe underside of the cross-timber b", as shown by dotted lines in Fig. 2. As the moving platform E descends,

its inner edge comes against thearms j of the delivery-tripper, andv is thereby tilted on its pivots into the position shown in Fig. 2 by' upward nioveinentfof the chain. The stop nr dotted lines,` and the platform is thus tilted far enough. to allow its barrel or package G toroll orslide off the moving platform. As soon astheload is discharged, the moving plat- 5 form drops back into its horizontal and nor-A nial position.

, Ob the inner sides of the hangers or links g are stop-pins s, which preclude the moving platforms E from being tilted toofar or nnnecessarily far in delivering their load.

'H designates a double partition, which eX- tends vertically midway between the ascending and'descending portions of the chains. I

In order to prevent any accident by reason vof either of the chains breaking, I secure to each ofthe four posts B a stop, l, and a stop, on, which are respectively pvoted at Z and m. r'The stop Zwill yield to an upward movement of the chain, but will not yield to a downward inovenient; but the stop m yields to a down- 4ward movement i of the chain and against an will be blockedby reason of theprojection m2 abutting against the post or upright.

5 In Figs. a and 5 I have illustrated the method of connecting a passenger caber car with the chains. -The rod g is connected with the chains, as before described, and the'pendent hangers g are bolted tothe sides of the car, as shown. The rod 9v2 -connects the hangers or links g be? low the car or cab... The rod g willbe guided by the guide ji', andthe rod g? will beguided in the guidef. o

In a passenger-elevator the chains would have to be stopped to take on and let off passengers, as inother passenger-elevators, and there can be no occurrence of injury to pas sengcrs by the car or cab striking the top of the building, as sometimes occurs inordinary elevators'in ease of breakage of rope. The elevator car or cab constitutes a moving platform for passengers. y I

In lieu of chains D D, `wire rope might be fused, the form ,o f the wheels d d c c being snitably modified.

Vihat I claim as my invention, and secure by Letters Patent, isvl.. In an elevating apparatus, the combina tion, 'wheels therefor, arranged at the top and loottom of the apparatus, of a rod extending between and connected with said chains or ear riers, hangers depending from said rod bedesire to tween the chains or carriers, a `moving plat- I depending'by means of hangers from and beform pivoted to and carried by said hangers, and a tripping mechanism against which the inner edge of said. platfrin is .brought in its descent to tilt said platform and cause it to deliver its load outward, substantially as herein described.

2, In an. elevating apparatus, thecombination, with two endless chains or carriers and wheels therefor, `arranged at the top and boty tom of the apparatus, of a moving `platform tween the chains or carriers, guides for the ling from said rod, -tosaid hangers, and pivoted loading-platforms and rest-ing upon the rod g, with two endless chains or carriers and chains or carriers, and independent guides for thelowei" portions of said hangers, whereby the vertical position of said hangers is continuously maintained, substantially as herein described. f

3. In anelevating apparatus, the combination, with two endless chains or carriers and wheels therefor, arranged at top and bottom of the apparatus, of a rod extending between and connected with said chains or carriers, hangers depending from said rod, a moving platform pivoted to and suspended by said hangv ers, pivoted loadingplatforms capable of being tilted by-the moving platform in its ascent to deliver thei r load upon the moving platform,

and a trip mechanism for tilting said pivoteld moving platform independently of its vhangersl" in its descent in "order to deliver the load, substantially as herein described.

4: In an elevating apparatus, the combina tion, `with endless chains or carriers land a cross-rod connecting them,

a moving platform pivoted capable of being tilted by the moving platform of hangers dependv in its ascent to depress the inner edges of said loading-platforms and causetheinload to pass onto the said moving platform, substantially as herein described.

' 5. In an elevating 'appara-tus, the coinbination, with two endless chains or carriers and a crossrod. extending between and connecting them, of hangers depending tween the chains or carriers and provided platform slanting from opposite edges toward its center, pivoted to said ontwardly-extending arms of the hangers at a distance from its center, and support-ed by said hangers at its center, substantially as herein described.

6. rlhe combination, with endlessl chains and from saidrod be- IOO vwith' outwardly-extending arms, and a'nioving wheels therefor, of a rod, g, extending be-` tween said chains, hangers g', a rod, g2, connecting the lower ends of .said hangers, arms y, extending outward and upward from the rod g2, anda moving platform having its lowest point at the center, pivoted to said arms, substantially as herein described.

7. The combination .of the wheels d c, end less chains l), the reds g g2, the hangers g, and arms y, separate guides for the ends 'of said rods g g2, and the moving platform E, pivoted to the arms g and resting on the rod g2,

' substantially as herein described.

IIO

8. The combination, with two endless chains `or carriers and wheels therefor, of moving platforms depending by means cf'hangers from and between said chains or carriers,- apivoted loading-platform, a tripper pivoted below said loading-platformand within range of said moving platform in its ascent, and a rod -or connection between whereby the moving' platform, in rising, will act upon said tripper, and by raising its front the rear end ofv said tripper y vand the front end of said loadingplatfoim, 13o' lend will depress the front end of said loading platform and cause it to deliver its load upon the moving platform, substantially as herein described. p

5 9. The combination, with endless chains or carriers and :i moving plat-form suspended between them, ot" 2L pivoted loading-platform, F, the shaft i, the lever i, whereby said shaft may be turned, the arms i, the tripper i",

1o pvoted to said arms, and the rod z", connecting the tripper in rear of its pivot with the platformF forward of its pivot, substantially yesberein described.

10. In :in elevfitiiig;` apparatus, the combine- 5 tion, Withvtwo endless lchains or carriers und cross-rods connecting them,` of hangers depending from 'said eross-rods ybetween said chains or carriers, movable platforms snspended by seid hangers and capable of making these rierswltliout being inverted, guides for said chains or carriers, and stops applied to the chains or carriers, capable of yielding to the forward movement thereof, but serving to prevent :i reverse movement, snbstzmtnillyas here- 2 in described. l l

e THOMAS KETH. Vitnesses: i

Femm. HnYNEs, HARRY BOGERT.

omplete circuit of the chains or car- 2o` 

